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Second Ozone Hole was detected over

Correct Answer: Tibet

Explanation:

Second ozone hole was detected over Tibet in the year 2006. 


Ozone is a form of oxygen, acts as a high-altitude atmospheric screen against cancer-causing ultraviolet light.


The main source of these halogens in the stratosphere is photodissociation of man made halocarbon refrigerants, solvents, propellants and CFC's.


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